CMS-1888 Make save Space work
Changed isCreated to more understandable isPersisted and exposed methods persistNewItem and updatePersistedItem instead of saveChanges for inheritors to override.
CMS-1888 Make save Space work
Removed class Panel from Panel
Renamed WizardStepContainer to WizardStepNavigator
Renamed WizardStepPanels to WizardStepDeckPanel
Moved less files into a folder structure that reflects it's user